Trans-Planckian censorship and other swampland bothers addressed in warm inflation

Abstract

The implications of the recently proposed Trans-Planckian censorship conjecture (TCC) are analyzed in the context of warm inflation. It is found that for a single-stage accelerated expansion the constraints imposed by the censorship are roughly the same as for cold inflation. Next, we study how a two-stage inflationary expansion with an intermediate radiation-dominated era can alleviate the bounds imposed by the censorship. For a demonstrative toy model we found $r<10^{-23}$, but can be $r<10^{-5}$ for a weaker form of TCC for the later stages of expansion, while still satisfying the other swampland conditions.

arXiv comment11 pages, 2 figures. In Press Physical Review D

References in corpus (53)

• Nine-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Final Maps and Results
• On the Geometry of the String Landscape and the Swampland
• The Swampland: Introduction and Review
• Warm Inflation
• The Trans-Planckian Problem of Inflationary Cosmology
• Universality Class in Conformal Inflation
• Thermal Inflation and the Moduli Problem
• Bounds on Slow Roll and the de Sitter Swampland
• De Sitter Space and the Swampland
• Thermally Induced Density Perturbations in the Inflation Era
• Inflationary paradigm in trouble after Planck2013
• The Robustness of Inflation to Changes in Super-Planck-Scale Physics
• Superconformal generalizations of the Starobinsky model
• Warm Inflation in the Adiabatic Regime- a Model, an Existence Proof for Inflationary Dynamics in Quantum Field Theory
• Microwave Emission at High Galactic Latitudes
• Super-Planckian Spatial Field Variations and Quantum Gravity
• Trans-Planckian Censorship and Inflationary Cosmology
• Warm Little Inflaton
• Inflationary paradigm after Planck 2013
• Warm inflation model building
• The importance of being warm (during inflation)
• A First Principles Warm Inflation Model that Solves the Cosmological Horizon/Flatness Problems
• Trans-Planckian Issues for Inflationary Cosmology
• Inflationary schism after Planck2013
• Power spectrum for inflation models with quantum and thermal noises
• Warm inflation as a way out of the swampland
• Shear viscous effects on the primordial power spectrum from warm inflation
• Inflation, holography, and the choice of vacuum in de Sitter space
• Warm Inflation in the light of Swampland Criteria
• Is there an imprint of Planck scale physics on inflationary cosmology?
• A note on Single-field Inflation and the Swampland Criteria
• Initial state effects on the cosmic microwave background and trans-planckian physics
• Towards a reliable effective field theory of inflation
• Distance, de Sitter and Trans-Planckian Censorship conjectures: the status quo of Warm Inflation
• Trans-Planckian censorship, inflation and excited initial states for perturbations
• Universal Upper Bound on the Inflationary Energy Scale from the Trans-Planckian Censorship Conjecture
• Warm brane inflation with an exponential potential: A consistent realization away from the swampland
• Trans-Planckian Censorship, Inflation and Dark Matter
• Planck CMB Anomalies: Astrophysical and Cosmological Secondary Effects and the Curse of Masking
• The trans-Planckian censorship conjecture from the swampland distance conjecture
• An Attempt to Determine the Largest Scale of Primordial Density Perturbations in the Universe
• Warm Little Inflaton becomes Cold Dark Matter
• Inflationary Initial Conditions Consistent with Causality
• Trans-Planckian Censorship Conjecture and Non-thermal post-inflationary history
• Warm inflation within a supersymmetric distributed mass model
• Primordial perturbations with pre-inflationary bounce
• Warm DBI inflation with constant sound speed
• Fluctuation-dissipation dynamics of cosmological scalar fields
• The role of fluctuation-dissipation dynamics in setting initial conditions for inflation
• Trans-Planckian Censorship and Inflation in Grand Unified Theories
• $\alpha$-attractor-type Double Inflation
• The Trans-Planckian Problem for Inflationary Cosmology Revisited
• Reexamination of the warm inflation curvature perturbations spectrum

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• Recent developments in warm inflation
• Towards a reliable effective field theory of inflation
• Trans-Planckian censorship, inflation and excited initial states for perturbations
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• Runaway potentials in warm inflation satisfying the swampland conjectures
• The warm inflation story
• Intermittent null energy condition violations during inflation and primordial gravitational waves
• Is the NANOGrav signal a hint of dS decay during inflation?
• The trans-Planckian censorship conjecture from the swampland distance conjecture
• Gravity Waves and Primordial Black Holes in Scalar Warm Little Inflation
• Trans-Planckian censorship of multistage inflation and dark energy
• Quantum aspects of chaos and complexity from bouncing cosmology: A study with two-mode single field squeezed state formalism
• Strengthening the TCC Bound on Inflationary Cosmology
• Warm Tachyon Inflation and Swampland Criteria
• On the graceful exit problem in warm inflation
• Running and running of the running of the scalar spectral index in warm inflation
• Swampland, Trans-Planckian Censorship and Fine-Tuning Problem for Inflation: Tunnelling Wavefunction to the Rescue
• Role of trans-Planckian modes in cosmology
• On the Trans-Planckian Censorship Conjecture and the Generalized Non-Minimal Coupling
• Is Trans-Planckian Censorship a Swampland Conjecture?
• Dirac-Born-Infeld warm inflation realization in the strong dissipation regime
• Trans-Planckian Censorship and $k$-inflation
• Superheavy dark matter from the natural inflation in light of the highest-energy astroparticle events
• On the TransPlanckian Censorship Conjecture in Holographic Cosmology
• WI2easy: warm inflation dynamics made easy
• Creating Spatial Flatness by Combining String Gas Cosmology and Power Law Inflation
• Thermal, Trapped and Chromo-Natural Inflation in light of the Swampland Criteria and the Trans-Planckian Censorship Conjecture
• How a four-dimensional de Sitter solution remains outside the swampland
• Rejuvenating the hope of a swampland consistent inflated multiverse with tachyonic inflation in the high energy RS-II Braneworld
• Warming up the Fibres
• A comparative analysis of dissipation coefficients in warm inflation
• Swampland conjectures and single field inflation in non-standard cosmological scenarios
• Supersymmetric Hybrid Inflation in Light of CMB Experiments and Swampland Conjectures
• Hitchhiker's Guide to the Swampland: The Cosmologist's Handbook to the string-theoretical Swampland Programme
• Stage IV CMB forecasts for warm inflation
• Thermal effects on warm chromoinflation
• Escape from the swamp with spectator
• Implications of single field inflation in general cosmological scenarios on the nature of dark energy given the swampland conjectures
• Cosmological Implications of Thermodynamic Split Conjecture